Electric



(No Model.)

L. G. WOOLLEY ELECTRIC GENERATOR.

Pa te nted Aug. 30

UNITED STATES PATE T OFFICE.

LEONIDAS G. WOOLLEY, or GRAND RAPIDS. "MiGHIGAN.

ELECTRICQG'ENERATOR.

SPECIFICATION fonning part-bf Letters- Patent N9. 369,219,dated August 30, 1887.

Appllcatlonfiled November Ll), was; Serial No. 219,505. (No model.)

TouZZ whom it may concerm.

Be it known thatI, LEONIDAS G. WooLLnY, of Grand Rapids, in the county ofKent and State of Michigan, haveinvented certain new and useful Improvements in Generation of Electricity; and I do hereby declare thefollowing to be a full, clear, and exact deseriptidii of the i nvention, such as will'en'able others skilled in the art to which it pertains to make and use it, reference being had to the accompany" ing drawings, which form part of this specifir" cation.

My invention relates to an improvement in the generation of electricity; audit-consists in the combination of a dynamo, a steamboiler, steam-pipe, or other suchv source of heat with a thermoelectric pile, which is applied to some portion of the boiler, thesmokestack, or the steanrpipcaas will be more fully described hereinafter.

The object of myinven'tion is to utilize the heat generated in a steam-boiler, or which is radiated from pipes through which the products of combustion or steam pass, in-connection with a thermoelectric pile, Which is applied thereto in such a manner. as to generate an even steady current ofelectricity to charge the dynamo, and which is suitable for are or incandescent lighting, telegraphing,*electroplating, and othersuch uses.- 1

Figure 1 represents an apparatus to which my invention is applied. Fig. 2 is a horizontal section takent-hrough the thermo-elee tric pile. 1 j

A represents. an ordinary steanrboiler of any suitable construction; B, the stack; F, the pipe which conveys thesteam from the boiler to the engine A, the shaft of the engine being connected directly to the armature of the .dynamo. Applied directly to the smoke-stack B, the steam-pipe F, or to any portion of the boiler A itself is a t-hermo -electric pile, O O G, which will be constructed in the usual manner. This pile may be of any desired size or length, and either only surrounds a portion of the smoke-stack or the pipe F, as here shown, or may be made large enough to surround the whole stack or the whole length of the steampipe, as may be preferred. These piles may any mechanical or dynamic effect. rent thus produced is preferably used to charge be inclosed within suitable jackets, if so preferred, g 1

Theheat which is generated from the stack B, fromthe waste products ofcombl stion, or from the steam-pipe F heats the inner junctures of the thermo elements, while the outer junctures of the thermo-pile arekept moderately 0001 from being exposed to the ordinary temperature-of the air, and hence a current 'is produced and kept constant regardless of This curthe field of force in a dynamo-electric machine, E, but may be used to operate an infor incandescent-lighting, orpositive and negative wires extending therefrom may be connected to the wires D, which extend from the poles of the pile G, placed around the stack, as may be preferred. Either one of. the piles may be used separately, or they may all be connected together, just a's'may be preferred? Should it be desired, wires may be made to extend from the dynamo, and used for both are and incandescent lighting, as shown.

The constant supply of electricity such as is produced by thermo-piles will maintain a. very even-and uniform field of force in adynamo-electric machine, regardless of the external circuit resistance which will be caused from a long or short are, or the turning on or the armature, up to the full capacity of the steam-engine.

Having thus described my invention, 11 In testimony whereofTaffixinysignature in IO claim- 7 i presence of two witnesses,

The combination of the boiler, a pipe or. r staek extending therefrom, a thermoelectric LEONIDAS G. WOOLLEY.

5 pile placed thereon, the steamengine, and the dynamo driven therel)y,-the wires extending Witnesses: from the thermoelectric pile being connected JOHN B. GRIMEs, to the dynamo for the purposeofcharging it, JOHN H. DEAN. substantially as shown. 5 v 

